CN203266517U - Ratchet wheel double offset ring spanner - Google Patents
Ratchet wheel double offset ring spanner Download PDFInfo
- Publication number
- CN203266517U CN203266517U CN 201320250688 CN201320250688U CN203266517U CN 203266517 U CN203266517 U CN 203266517U CN 201320250688 CN201320250688 CN 201320250688 CN 201320250688 U CN201320250688 U CN 201320250688U CN 203266517 U CN203266517 U CN 203266517U
- Authority
- CN
- China
- Prior art keywords
- spanner
- ratchet
- wrench
- double offset
- wrench head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a ratchet wheel double offset ring spanner which connects a wrench body with a wrench head by utilizing an intensive ratchet wheel pawl mechanism, can work with loads and return strokes with no load in narrow and small space. The spanner comprises the wrench body and the wrench head, the wrench body is provided with a wrench head sleeve, the wrench head is arranged in the wrench head sleeve, a double offset ring hole matched with a nut is formed in the inner hole of the wrench head, ratchets are arranged on the outer ring of the wrench head, so that the outer ring of the wrench head takes the shape of a ratchet wheel, an arc groove is formed in the side wall, in the direction of a wrench handle on the wrench body, of the wrench head sleeve, a one-way pawl mechanism is arranged in the arc groove, the one-way pawl mechanism comprises a pawl and a spring, the pawl is meshed with the ratchets on the outer ring of the wrench head, a sunk hole is formed in the arc surface of the arc groove, the sunk hole deviates an axis of the wrench body and is formed in one side of the arc groove, one end of the spring is arranged in the sunk hole, and the other end of the spring props and presses the other side of the arc groove. According to the ratchet wheel double offset ring spanner, the structure is compact, the size is small, the number of the teeth of the wrench head is large, and the used space is greatly increased.
Description
Technical field
The utility model relates to the double offset ring spanner technical field, relates in particular to a kind of ratchet wheel pawl type double offset ring spanner.
Background technology
The double offset ring spanner that uses at present must withdraw from spanner after forward work certain angle from bolt, after returning certain angle, then inserting bolt works on, inefficiency; In addition, but the usage space of double offset ring spanner is 30 °, as at narrower and small working space, just can't use.
The utility model content
The utility model provides a kind of body of pulling to utilize intensive ratchet and pawl arrangement to be connected with spanner for the problems referred to above, and making in small space also can loaded work piece, the double offset ring spanner with ratchet of unloaded backhaul.
The technical solution of the utility model is: described spanner comprises having pulling body and being located at spanner in described spanner cover of spanner cover, and described spanner endoporus is provided with the plum blossom hole adaptive with nut, and the spanner outer ring is provided with ratchet, makes the spanner outer ring form ratchet-like; On body, the direction of trigger piece is provided with a deep-slotted chip breaker to the sidewall of described spanner cover towards pulling, and is provided with one-way ratchet in described deep-slotted chip breaker, and described one-way ratchet comprises ratchet and spring, the ratchet engagement of described ratchet and described spanner outer ring;
The arcwall face of described deep-slotted chip breaker is provided with a shrinkage pool, and described shrinkage pool departs from the described body axis of pulling, and is positioned at a side of described deep-slotted chip breaker; One end of described spring is established in described shrinkage pool, the other end pushes up described ratchet the opposite side that is pressed on described deep-slotted chip breaker.
Described ratchet is provided with protruding handle towards an end of described spring, and described spring housing is located on described protruding handle.
The side of described protruding handle is provided with boss.
72 ratchets are established in the spanner outer ring of described ratchet-like.
The side of described ratchet is provided with 6 ~ 7 teeth groove.
The utility model pull the body forward stressed after, coordinate by ratchet and spanner, spanner rotates with pulling body, reaches the purpose of forward work.Oppositely stressed when pulling body, ratchet will separate with spanner, pull the body reversed turning thereby make, and spanner is motionless, reach the rotating function of spanner.The effect of spring is that ratchet is contacted with spanner with pulling body all the time, when pulling the body forward when stressed, spanner, ratchet and pull physical efficiency and in time coordinate, when pulling body oppositely after stressed elastic force greater than spring, ratchet smoothly with pull body, spanner separates.Design 72 teeth at the spanner cylindrical, made spanner revolution minimum angles can reach 5 °.Like this, make the spanner can be in narrow and small working space work.
Structure in the utility model is compared with the existing ratchet driving spanner structure of using, and the compact conformation volume is little, and the spanner number of teeth is many, makes usage space greatly improve; The ratchet of ratchet and spanner is straight-tooth, (having reduced greatly the time of machine-shaping) simple shape, and ratchet coordinates area large, and machine-shaping is easy, and cost of manufacture is low; In addition, ratchet and spanner have adopted 6 ~ 7 teeth to coordinate, operation torque and the service life of greatly having improved spanner.
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model structure,
Fig. 2 is the structural representation of the utility model confined state,
Fig. 3 is structural representation of the present utility model,
Fig. 4 is the structural representation of spanner in the utility model,
Fig. 5 is the structural representation of ratchet in the utility model,
In figure, 1 is to pull body, the 2nd, and ratchet, the 20th, protruding handle, the 3rd, spring, the 4th, spanner, the 5th, spring, the 6th, deep-slotted chip breaker, the 60th, shrinkage pool;
In figure, solid arrow is operative orientation, and dotted arrow is gyratory directions.
The specific embodiment
As shown in Fig. 1-5, described spanner comprises having pulling body 1 and being located at spanner 4 in described spanner cover of spanner cover, and described spanner 4 endoporus are provided with the plum blossom hole adaptive with nut, and spanner 4 outer rings are provided with ratchet, makes spanner 4 outer rings form ratchet-like; On body, the direction of trigger piece is provided with a deep-slotted chip breaker 6 to the sidewall of described spanner cover towards pulling, and is provided with one-way ratchet in described deep-slotted chip breaker 6, and described one-way ratchet comprises ratchet 2 and spring 3, the ratchet engagement of described ratchet 2 and described spanner 4 outer rings;
The arcwall face of described deep-slotted chip breaker 6 is provided with a shrinkage pool 60, and described shrinkage pool 60 departs from described body 1 axis of pulling, and is positioned at a side of described deep-slotted chip breaker 6; One end of described spring 3 is established in described shrinkage pool 60, the other end pushes up with described ratchet 2 opposite side that is pressed on described deep-slotted chip breaker 6; Make spring 3 be in crooked duty.
Described ratchet 2 is provided with protruding handle 20 towards an end of described spring 3, and described spring 3 is set on described protruding handle 20.
The side of described protruding handle 20 is provided with boss, avoids spring 3 to come off.
72 ratchets are established in spanner 4 outer rings of described ratchet-like, and the angle of teeth of adjacent ratchet is 5 °, and two flank of tooth angles of adjacent ratchet are 90 °.
The side of described ratchet 2 is provided with 6 ~ 7 teeth groove, is meshed with spanner 4 outer ring ratchets, and the crown two sides angle of each ratchet is 90 °.
Assembling process of the present utility model is: at first spring 3 one ends are set on the boss 20 of ratchet 2, then the other end are inserted in the shrinkage pool 60 in deep-slotted chip breaker 6, then put into spanner 4; Fixedly pull body 1 and spanner 4 with spring 5 at last, and spanner 4 is freely rotated.
Claims (5)
1. double offset ring spanner with ratchet, described spanner comprise having pulling body and being located at spanner in described spanner cover of spanner cover, and described spanner endoporus is provided with the plum blossom hole adaptive with nut, and the spanner outer ring is provided with ratchet, make the spanner outer ring form ratchet-like; On body, the direction of trigger piece is provided with a deep-slotted chip breaker to the sidewall of described spanner cover towards pulling, and is provided with one-way ratchet in described deep-slotted chip breaker, and described one-way ratchet comprises ratchet and spring, the ratchet engagement of described ratchet and described spanner outer ring;
It is characterized in that, the arcwall face of described deep-slotted chip breaker is provided with a shrinkage pool, and described shrinkage pool departs from the described body axis of pulling, and is positioned at a side of described deep-slotted chip breaker; One end of described spring is established in described shrinkage pool, the other end pushes up described ratchet the opposite side that is pressed on described deep-slotted chip breaker.
2. double offset ring spanner with ratchet according to claim 1, is characterized in that, described ratchet is provided with protruding handle towards an end of described spring, and described spring housing is located on described protruding handle.
3. double offset ring spanner with ratchet according to claim 2, is characterized in that, the side of described protruding handle is provided with boss.
4. double offset ring spanner with ratchet according to claim 1 and 2, is characterized in that, 72 ratchets are established in the spanner outer ring of described ratchet-like.
5. double offset ring spanner with ratchet according to claim 1 and 2, is characterized in that, the side of described ratchet is provided with 6 ~ 7 teeth groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250688 CN203266517U (en) | 2013-05-09 | 2013-05-09 | Ratchet wheel double offset ring spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250688 CN203266517U (en) | 2013-05-09 | 2013-05-09 | Ratchet wheel double offset ring spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203266517U true CN203266517U (en) | 2013-11-06 |
Family
ID=49497003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320250688 Expired - Lifetime CN203266517U (en) | 2013-05-09 | 2013-05-09 | Ratchet wheel double offset ring spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203266517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742055A (en) * | 2013-12-25 | 2015-07-01 | 吴逸民 | Spanner for narrow space |
-
2013
- 2013-05-09 CN CN 201320250688 patent/CN203266517U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742055A (en) * | 2013-12-25 | 2015-07-01 | 吴逸民 | Spanner for narrow space |
| CN104742055B (en) * | 2013-12-25 | 2017-01-11 | 吴逸民 | Spanner for narrow space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |